Structures and electronic properties of CumCon-CO2-H2O(m + n = 2~7) clusters

被引：0
|
作者：
Peiying Huo
Xiurong Zhang
Kun Gao
Zhicheng Yu
Jun Zhu
机构：
[1] Jiangsu University of Science and Technology,School of Mathematics and Physics
[2] Shangqiu Institute of Technology,School of Materials Science and Engineering
[3] Jiangsu University of Science and Technology,undefined
来源：
Structural Chemistry | 2018年 / 29卷
关键词：
CO; and H; O co-adsorption; Structures and electronic properties; Density functional theory;
D O I：
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中图分类号：
学科分类号：
摘要：
A theoretical study was carried out of CO2 and H2O co-adsorption on CumCon(2 ≤ m + n ≤ 7) clusters using density functional method. The results show that, generally, CO2 molecules are adsorbed at top and bridge sites, but CO2 of Cu2CO4-CO2-H2O, Cu2Co5-CO2-H2O, and Co7-CO2-H2O clusters are at hollow sites. And H2O are all adsorbed at top sites via O atoms. Co5-CO2-H2O, CuCo2-CO2-H2O, Cu2Co-CO2-H2O, and Cu5Co-CO2-H2O clusters show better thermodynamic stability, while Cu2-CO2-H2O, Co2-CO2-H2O, Cu2Co-CO2-H2O, Cu3Co-CO2-H2O, and Cu6-CO2-H2O have stronger chemical stability. Mulliken charge and partial density of states are also analyzed for understanding the effect on interaction between CO2 and Cu-Co clusters after doping H2O.
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页码：577 / 584
页数：7
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